Use of Linux telnet command

netstat [-8EFKLacdfrx] [-X authtype] [-b hostalias] [-e escapechar] [-k realm] [-l user] [-n tracefile] [host [port]]

-8: Allows the use of 8-bit character data, including input and output -a: Attempts to automatically log in to the remote system;
-b <hostalias>: Use an alias to specify the name of the remote host -c: Do not read the .telnetrc file in the user's dedicated directory -d: Start debugging mode -e <escapechar>: Set the escape character -E: Filter escape characters -f: The effect of this parameter is the same as specifying the "-F" parameter -F: When using Kerberos V5 authentication, adding this parameter can upload the authentication data of the local host to the remote host -k <realm>: When using Kerberos authentication, adding this parameter allows the remote host to use the specified domain name instead of the domain name of the host to obtain the ticket -K: Do not automatically log in to the remote host -l <user>: Specify the user name to log in to the remote host -L: Allow the output of 8-bit character data -n <tracefile>: Specify a file to record related information -r: Use a user interface similar to the rlogin command -x: Assuming the host has support for data encryption, use it -X <atype>: Turn off the specified authentication type.

telnet 192.168.0.5

$ telnet 10.234.178.144 22
Trying 10.234.178.144...
Connected to 10.234.178.144.
Escape character is '^]'.
SSH-2.0-OpenSSH_6.0

auth <argument> [...]: View and manage telnet login authentication methods. The possible values ​​for argument are: disable, enable and status
close: Close the current Telnet connection display: Use the display command to view the current settings of the Telnet client logout: Similar to the cloase command, used to close the Telnet connection or suspend it. Note: The Telnet server may not support open <host> [-l user] [[-] port]: Establish a Telnet connection to the specified host send <arguments>: Use the send command to send a specific string to the Telnet server. Support includes but is not limited to the following command strings:
	abort: terminate service command ao: Abort Output, abandon output command ayt: Are you there command brk: Break command eof: send End Of File character escape: send the current escape character, initially the grouping character ^].
	ip: interrupt process command synch: execute Telnet synchronization operation.
quit: Exit the Telnet client.
status: Displays the current Telnet connection status